NDLI: The effect of crossflow on taylor vortices: a model problem

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The effect of crossflow on taylor vortices: a model problem

Content Provider	NASA Technical Reports Server (NTRS)
Author	Bassom, Andrew P. Otto, S. R.
Copyright Year	1993
Description	A number of practically relevant problems involving the impulsive motion or the rapid rotation of bodies immersed in fluid are susceptible to vortex-like instability modes. Depending upon the configuration of any particular problem the stability properties of any high-wavenumber vortices can take on one of two distinct forms. One of these is akin to the structure of Gortler vortices in boundary layer flows while the other is similar to the situation for classical Taylor vortices. Both the Gortler and Taylor problems have been extensively studied when crossflow effects are excluded from the underlying base flows. Recently, studies were made concerning the influence of crossflow on Gortler modes and a linearized stability analysis is used to examine crossflow properties for the Taylor mode. This work allows us to identify the most unstable vortex as the crossflow component increases and it is shown how, like the Gortler case, only a very small crossflow component is required in order to completely stabilize the flow. Our investigation forms the basis for an extension to the nonlinear problem and is of potential applicability to a range of pertinent flows.
File Size	1075062
Page Count	26
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19940008655
Archival Resource Key	ark:/13960/t4cp21j5z
Language	English
Publisher Date	1993-06-01
Access Restriction	Open
Subject Keyword	Fluid Mechanics And Heat Transfer Base Flow Boundary Layer Transition Vortex Breakdown Boundary Layer Stability Circular Cylinders Cross Flow Goertler Instability Boundary Layer Flow Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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